Compliance

• SD Host Controller Standard Specification Version 3.00
• SDIO card specification Version 3.0
• SD Memory Card Specification Version 3.01
• SD Memory Card Security Specification version 1.01
• MMC Specification version 4.51
• OCP specification version 2.01(For the Host Controller with OCP Interface)
• AMBA AHB Specification version 2.00 (For the Host Controller with AHB Interface)
• AMBA AXI Specification version 3.00 (For Host Controller with AXI Interface)

System/Host Interface

• Supports one of the following System/Host Interfaces: AHB, AXI or OCP
• Data transfer using PIO mode on the Host Bus Slave interface, using DMA mode on the Host Bus Master interface. Here the Host Bus is AHB or AXI or OCP Interface.

SD/SDIO Card interface

• Host clock rate variable between 0 and 208 MHz
• Up to 832Mbits per second data rate using 4 parallel data lines (SDR104 mode)
• Transfers the data in 1 bit and 4 bit SD modes
• Transfers the data in SDR104, SDR50, DDR50 modes.
• Cyclic Redundancy Check CRC7 for command and CRC16 for data integrity
• Variable-length data transfers
• Performs Read wait Control, Suspend/Resume operation SDIO CARD.
• Designed to work with I/O cards, Read-only cards and Read/Write cards
• Supports Read wait Control, Suspend/Resume operation

MMC card interface

• Host clock rate variable between 0 and 208 MHz
• Up to 1664Mbits per second data rate using 8 bit parallel data lines (mmc8 bit SDR mode)
• Up to 832Mbits per second data rate using 8 bit parallel data lines (mmc8 bit DDR mode)
• Transfers the data in 1 bit, 4 bit and 8 bit modes
• Cyclic Redundancy Check CRC7 for command and CRC16 for data integrity
• Supports MMC Plus and MMC Mobile
• Card Detection (Insertion / Removal)

What's new in Zynqmp/Versal

1. SD
   • UHS speed modes
   • 1.8V capability
   • SDXC card capacity support (>64G)
   • Tuning procedure for SDR104/DDR50/SDR50
   • voltage switch, tuning commands
2. eMMC
   • complete new spec handled by JEDEC compared to MMC association
   • HS200 mode and Extended CSD register to support various features
   • 1.8V/1.2V support from CMD0
   • DDR mode support
   • 8-bit bus width
   • Tuning, bus width testing procedures
   • variants of erase - secure/trim/discard/sanitize
   • boot partitions, boot mode alternate boot mode
   • RPMB partitions